Door check and closer.



No. 850,394. PATENTED APR. 16, 1907.

P. PAPENFOTH.

DOOR UHEGK AND CLOSER. APPLICATION FILED MAR. 22, 1905.

2 SHEETS-SHEET 1.

n tl hlv I 7 Sl iugul'o: Paw! F6206 fo'f/ No. 850,894. PATB-NTED APR. 16, 190?.

P. PAPENFOTH. DOOR CHECK AND CLOSER.

APPLICATION FILED MAREZZ. 1905 2 SHEETS-SHEET 2.

Sin ucnl'o:

ITED sTATEs PAUL PAPENECTII, on NEW BRITAIN,

& ERWIN MANUFACTURING COMPANY PATEN OFFICE.

A CORPORATION OF CONNECTICUT.

DOOR CHECK AND CLOSER.

V Application filed To all whom it may concern.-

v on

" such constructions as are r the checking fluid.

connecting-dink. Fig.

,mechanism and the checking Be it known that I, PAUL PArENroTH, a citizen of the United States, residing at New Britain, Hartford county, Connecticut, have invented certain new and useful Improvements inDoor Checks and Closers, of which the following is a full, clear, and exact descrip tion.

My invention relates to improvements in door checksand closers, and particularly to to be concealed in the floor beneath the door and are commonly known as floor-checks.

One of the objects of the-invention is to rovide a simple and strong construction which will operate on a door swinging in either direction.

Another object is to regulate theactionof Another object is to construct the parts so thatthey'maybe readily assembled and disassembled.

The improvements particularly relate to the mechanical construction, vto the connecting mechanism between the operating and to the valve mechanism for governing the passage of theiluid througlnthe check.

The principles of the invention are illustrated in the accompanying two sheets of drawings.

Figure 1 i'sa plan view of a door check and closer embodying the improvements of my invention,'the cover-or coverplates bein removed to show the interior. Fig. 2 is a ongitudinal vertical sectional view, the cover plates being in place and the parts being in their normal position. Fig. 3 is a horizontal sectional view of the parts carrying the valve mechanism. Fig. 4 is a side view of one of the'connecting-levers of the operating mech anism. Fi 5 is a detail side elevation of a der side of the same; Fig, 7 isa detail of an abutment, showing one end of the connect ing-rod in section.

Numerals are used on the drawings to indi cate or refer to the different parts of the mechanism. 4 l

1 indicates the casing, which is in the form of a box and providesspace fog tlle operating u1 Y I 2 indicates the spindle, which serves as a Specification of Letters Patent.

arch 22,

parts,

'6 is a view of the un- Patented April 16, 1907.

1905. Serial No. 251.364. 4

pivotal support for the door and for transmitting the checking and operating pressure. 3 indicates a fragment of a shoe which it is customary to employ in devices of this charactor and which may be rigidly secured to the lower edge of the door.

4 indicates a cover for the spindle end of the casing. 5 indicates a cover for the opposite end of theca'sing. suitably secured in place to the casing. The cover4 also serves to assist in holding the spindle 2 in position. 4

$16 indicates the operating-spring, which is normally under compression and may be of any suitable form. I 1 v 7 indicates the connecting-rod mounted in suitablebearings in the casing to have longitudinal or reciprocal movement.

8 indicates-a collar adjustable on a screwthreaded portion of one end of the rod, serving as an abutment for the spring 6.

9 indicates a Ushaped plate near the center of the casing,- serving as a stationary abutment for the other end of the spring. This plate 9 is held place against the pressure of the spring 6 by the shoulders 9 9 of the casing and permits the connecting-rod to be readily assembled in the device or taken out. i

10 indicates a lever suitably pivoted in the casing.

11 and 11f indicate the lower and upper ortions of the head of the connecting-rod 7. The head islarger than the opening in plate 9, so thatthehead serves as an abutment for the plate and spring 6 in disassembling. I p

12 indicates a link pivoted to the lever 10.

13 indicates a pivot pinwhich passes through the head of the connecting The lever 10,Icorresponding to lever 10, is pivoted in the casing and is connected to the pivot-pin 13 by means of'the link 12 the "pin passing through the links 12 and 12.

14 indicates a cam carried by the spindle 2, and preferably integral therewith and symmetrical on both sides of the longitudinal axis of the casing. When the door swings violently back andiiorth; the point of the cam tends to strike the levers 10 and 10.-

14! is a roller mounted at the point of the cam and serving to reduce friction at this l po These covers may be I rod.

Too

. on its pivot, so that the opposite end of the 7, and also in conjunction chamber to receive acheckingfiuidof suitable piston construction in desirable that the parts be removable.

of the piston. I

. tion, so. that the :hollow, as shown,and which servesas'a guide 15 and 15 indicate rollers carried, respec- I to pass through the outlet, causes the valve, 6

tively, by the levers 10 and 10 for cooperat- 19 to move tothe left and partially close ing with the opposite surfaces of the cam 14'. 1 or restrict the passage, so; as to preventthe Rotation of the spindle on its axis and the door from suddenly'closlng. When the door must flow back is opened, the'fiuid ofleourse I prefer to proconsequent swinging of the cam causes into the checking-chamber.

the cam to engage one of the rollers 15 or 1 5. T 's swings the lever, carrying the roller seated a check-valve 22, so that the fluid may lever, which 1s connected by a link" to the pass into the checkingchamb'er more freel cross-head of the rod 7, Will move the latter toward the spindle in a substantially-straight line against the force of the spring. The movement of the connecting-rod and com .pression of the spring 6 is therefore the same, sible from above; irrespective of the direction in which the spindle is vibrated, so that thedoormay be opened in either direction; The construction may therefore be employed either on a right, left, or double swinging door, without the interchange or readjustment of any of the parts or danger of binding or cramping.

When the door is released, the tendency of the spring 6 is to return the parts to their original position by action directly the reverse of that befjre described. While the construction is such that in a double-swinging door the yielding resistance is=afforded to the parts when they reachthe normal posi- I passage being'closed by the" check-valve on said outflow.

to the seat for the valve 19. When the ball is thrown to the left by the fluid, the ball,

shown, will strike against the cam 24, which for the fluid to escape to the outlet 20. The size of "this passage may be variedby adjusting the cam 24 so as to permit the ball 19 to momentum is taken up by spring resisting the movethe action of the in the opposite direction I ment of the door from that in which it was last swung, it is advisable that the movement be checked to prevent the too rapid closing of the door,

16. indicates a piston which is preferably for the cylindrical end' of the connecting-rod :with it to form a' tion of a piston and cylinder,a spring, a concharactensuch as oil.v "This piston may be ried thereby, provided with suitable grooves or .other means for lubrication between it .and theinner surface of thesurrounding cylinder portion of the connecting-rod.

17 17 indicate screws for. securing the the casing, it being gagement by sai cam, and connecting-links from said levers to said rod permitting the spindle who turned in either direction.

2. In a door-check and closer, the combination of a piston and a horizontally-movable cylinder, a'connecting-rod,a spring therefor, an operating-spindle, andtd'uplicate pivoted connecting mechanism from each side-of'said spindle to said rod permitting the spindle to be turned. in either direction and intermediate f, connecting mechanism between said spindle and said pivoted-mechanism.

18 indicates a shoulder in thecas' for properly locating and supporting the piston construction. I v

The outlet from the checking-chamber is preferably through the piston member.

19 indicates a ball' constituting a valve member, which operates in a conieal'passage rod, a in the rear of the piston-body.

direction, an operatingecarn, a pair of oppo- 20 indicates the outlet beyond} the valved sitely-arranged pivoted,le'vers engaging'said portion of the passage.- V "cam, and a pivotal link connection between '21 is a pin accessible from above when the each of said levers and said rod; cover 5 is removed, which serves to prevent 4. the ball 19 from falling back'into the interior ;.-f r, saidr'od having a head with upp'e'rand lower arms, a connecting" sai When the door has been opened and then" released, so that the connecting-rod moves to levers the left, the fluid in' the chamber 16, tending v than it can flow out ofthe same, the auxiliary 75 23 indicates a-screw-threaded post acces It takes mm a tapped v hole in the rear of the piston-body and hasa cam-shaped portion 24 immediately adj acent acts as a stop therefor, thus leaving a passage provided a projection 25, 4 23, which operates be- 3. In a door-closer, the combination of a.

videanauxihary or inletpas'sage in whichis pressure of the" in the position of adjustment approach nearer to its'seat and so as to seapparent to those f IDC 1. Inadoor'check and closer, the'combinanectlng-rod, an operating-spindle, a cam car-'- 4 a pair of pivoted levers for enspring for propelling the same in one r In adoor-closer, the combination'of a longitudinall I'novablerod, a spring'there- I25 air ofI-pivoted levers, links j g I andfs'aid-rdd located and held in ,place. -between.the arms of its head and an operating-spindle and cam for valve being normally withdrawn from but adjacent to the narrower end of the contracted portion of said outlet, a rotatable post having a cam portion adjacent to said outlet for varying the permissive movemen of said ball for the purpose specified.

6. In a door-check, a stationary hollow piston having a contracted outlet,'a movable rod having a cylindrical end portion adapted to inclose and move on said piston 'to form therewithqa liquid-checking chamber, the,

lower side of said contracted outlet being inclined downwardly from the contracted end PlStOll having a piston'to of said outlet, a ball-valve supported on said incline and normally standing away from said outlet end, and an adjustable device for varying the permissive operative movement of said ball in said outlet.

'7. In a doorcheck, a stationary hollow contracted outlet and an auxiliary inlet passage leading to said contracted outlet, a valve in said inlet-passage, a novable rod having a cylindrical end portion'adapted to inclose and move on said form therewith a liquid-checking chamber, the lower side of said contracted outlet being inclined downwardly'from the contracted end of said outlet, a ball-valve supported on said incline and normally standing away from said outlet end, and an adjustable device for varying the permissive operative movement of said ball in said outlet.

8. In a door-check, a stationary hollow piston having a contracted outlet, a movable rod having a cylindrical end portion adapted to inclose and move on said piston to form therewith a liquid-checking chamber, the lower side of said. contracted outlet being inclined downwardly from the contracted end of said outlet, aball-valve supported on said incline and normally standing away from said outlet end, an adjustable device for varyin the permissive operativemovement of said ball in said outlet, and a removable stop for holding the ball against accidental displacement.

9. In a door check and closer, a stationary hollow piston havinga contracted outlet, a

movable rod having a cylindrical end portion adapted to inclose and move on said plston to form therewith a liquid-checking chamber, a

ball-valve seated in said contracted outlet, being normally withdrawn from but'adjacent to the contracted portion thereof, means for adjusting the extent of closure of said valve, an operating-spindle, oppositely-positioned pivotal means of connection between the operating-spindle and said r'od, a spring for bringing the parts to their normal position, and a casing for inelosing said parts.

10. In a door-closer, the combination of a red, a spring for propelling said rod in one direction, a spindle, an operating cam carried thereby, a pair of oppositely-arranged pivoted levers, engaging said. cam, and means of connection between said levers and said rod.

11. In a door-check, the combination of a piston member, a relatively movable cylindrical member forming in conjunction there with a liquid-checking chamber, one of said members having a contracted outlet-passage leading from said chamber, a normally unseated check-valve in said passage, and adjustable means for varying the permissive closing movement of said valve.

12. In a door-check, a stationary hollow piston, a restricted outlet-passage, an inlet passage, and alrauxiliary inlet-passage in connnunication with said outlet-passage, a

junction therewith a liquid-checking chamber, a normally unseated checlovalve in said outletpassage, a normally seated checkvalve therefor, a removable pin forholding said ball in place, and means for adjusting the permissiveclosin action of said'valve.

14. In a door-chcc r, a stationary piston member and a cylindrical member movable relatively thereon, one of said members having a contracted outlet-passage, a valve in said passage normally withdrawn from but adjacent to the contracted portion, and meansfor adjusting the permissive closure of said valve.

I 15; In a'door-checlki, a stationary piston member and a cylindrical'member movable relatively thereon, one of said members having a contracted outlet-passage and an inletpassage, a valve in said outlet-passage normally withdrawn from but adjacent to the contracted portion, means for adjusting the permissive closure of said valve, and a valve in said inlet-passage.

16. In a door check and closer, the combination of a casing, a spindle, a normally stationary but removable hollow piston memher having an outlet and mounted in said casing, a cylinder mounted to reciprocate on said piston, a rod connected to said cylinder l having anenlarged head, operative means of 'movablerod having a cylindrical end portion hill/111 g on said piston. and forming in conmember having an outlet-passage, a -ball-- valve in said auxiliary inlet, and a normally rod, a spring surrounding said rod, a rotary longitudinally-movable rod, i guides therefor,

connection between said head'and said spindle, an adjustable abutment-ring screwthreaded on the cylinder, an abutment-plate through which said rod passes, said casing having a stationary abutment against which said plate normally rests, a spring coacti ng 1 between said abutment-plate and said abutment-ring, said abutment-plate having a assage of less diameter than said enlarged iiead for the purpose specified. I

17. In a door check and closer, the combination ofja'spindle, a checking-cylinder, a connectin rod, a spring surrounding said rod and having an abutment at one end thereof, a. removable U-shaped abutmentplate for the other endof said spring, an en la'rged' head beyond said abutment-plate, means of connection between said spindle and said head, and a casingsurrounding the operating parts andaffording an abutment for said abutment-plate. a

18. -In a door check and-closer, the combination of a piston and cylinder, a connectingspindle, a cam carried thereby,a pair of pivoted levers for engagement with the opposite sides' of said cam, and means of'connec tion between said levers and said rod. v

'19. In a door-closer, the combination of a r a spring for moving said rod in one direction, a rotary spindle, a cam mounted to rotate therewith, a pivoted lever disposed on each I side of said camadapted toxbe operated thereby, and means of connection between each lever andsaid rod.

20. In a door-closer, the combination of a rod, a spring for moving said rod in one direction, a rotary spindle,- a pair of oppositely-disposed pivoted levers one on each side of said spindle, means of connectionbetween said levers and said rod, and means carried by said spindle for coacting with one or the other of said levers according as the between each of said levers and said movable member, and means carried by said spindle for coacting with either one of said levers acdirection or the 5 disposed pivoted levers, means of connection I cording as said spindle is rotated in one direction or the other. v

22. In a door-check, the combination of a cylindrical member anda piston m'ember, one

of said members being movable relative to the other toprovide in conjunction with the other member a fluid-checking chamber, one of said members having an outlet-passage with anormally unseated valve adapted to be partially seated by the closing action of the mechanism and two branch passages communicating with said outlet-passage, and a normally seated valve in one of said braneh passages.

23. In a door-check, a casing, a cylindricalmember, a piston member, one of said members being movable relative to the other to provide in conjunction with the other member a fluid-checking chamber, removable means for rigidly securing one of said members in said cas ng, said removable,

memberhaving a contracted outlet-passage, a ball-valve in said passage normally unseated, apin'for holding said valve in its normal'position, and means for adjusting the permissive closing action of said valve, said pin'and said adjusting means being carried by said removable member and removable with it. 4

PAUL PAPENFOTHL Witnesses: I I

M. S. WIARD, -F. E. SUNBURN. 

